What Is Progressive Overload?

"Progressive overload is a gradual increase in the amount one lifts during resistance training," explained ACSM-certified personal trainer Jim White, RDN, owner of Jim White Fitness and Nutrition Studios. Over time, your body adapts to handling a certain amount of resistance, so increasing the load on the body — through an increase in weight, reps, or sets — will force the body to adapt and result in strength and muscle improvements.

"When it comes to lifting weights, the reason people don't make progress is because they don't challenge themselves," Eric Bowling, an NASM-certified personal trainer at Ultimate Performance, told POPSUGAR. People get complacent and are scared to lift heavier because they don't want to injure themselves or they give up after it burns too much. "If you want to make progress, it's going to require pushing your limits and enduring a degree of pain," he said.

How to Incorporate Progressive Overload Into Your Training

If you're not even sure where to begin with lifting weights, use this guide to decide how heavy your weights need to be to start. Jim said to start out with a lighter yet challenging weight that you can lift for three sets of 10 to 12 reps. The next time you work out (or in a couple of sessions), add five pounds to the weight so you can only do three sets of eight reps. Once you progress with this weight to 10 to 12 reps, it's time to go even heavier. He added that it's important not to go too heavy so as not to compromise form or result in injury.

And while increasing weight is one way to implement progressive overload, Eric said there are other variables you can change: reps, sets, weight, tempo (the speed during the movement), total time under tension, range of motion, and rest time. "This constant manipulation to key variables is the advantage weight training has over traditional cardio," he said, adding that this is why weight training is key for fat loss. If you feel like you hit a plateau, try the same workout but change one of the variables: decrease rest, add a set, or do more reps. Once you feel like you could do an exercise for unlimited reps or do 10 sets without breaking a sweat, then it's time to challenge yourself.

If you are looking for a plan to help guide you, here's a four-week training schedule that incorporates progressive overload. Get at it!